Edgar Markov + Oathsworn Vampire + Warren Soultrader + Verdant Sun's Avatar

Edgar Markov

Oathsworn Vampire

Warren Soultrader

Verdant Sun's Avatar

How it works

1. Cast Oathsworn Vampire either from your hand or graveyard by paying 1.
2. Edgar triggers, creating a 1/1 Vampire creature token.
3. When the Vampire and Oathsworn Vampire enter, Verdant Sun's Avatar triggers twice, causing you to gain 3 life.
4. Activate Warren Soultrader twice by paying 2 life and sacrificing Oathsworn Vampire and the Vampire token, creating two Treasure tokens.
5. Activate two Treasures by tapping and sacrificing them, adding 1.
6. Repeat.

This elegant loop transforms a humble skeleton into a relentless army, fueled by Warren Soultrader's ability to turn sacrifices into mana at the cost of life. That life is immediately replenished by Verdant Sun's Avatar whenever creatures enter the battlefield, which conveniently satisfies the life-gain condition needed to recast Oathsworn Vampire right back out of your graveyard. Meanwhile, Edgar Markov sits back and watches the chaos unfold, his Eminence ability turning every single recursion of Oathsworn Vampire into an extra body that feeds the sacrificial engine even further.